The undead have taken over the world in Undead Mayhem, and it's time to fight back! To survive the waves of zombies attacking my hideout, I used these Undead Mayhem codes to upgrade my survivor's stats and gain new weapons.

Undead Mayhem codes will help you level up by giving you XP buffs, cash boosts, or more Zombux to spend on cool weapon skins. With the best weapons, the undead won’t stand a chance against you and your team, giving you the firepower you need to come out on top. If tower defense games are your thing, use Zombie Invasion Tower Defense codes to cancel the undead apocalypse.

Related: Zombie Uprising Codes

Whenever new Undead Mayhem codes are released, we'll add them to this page, so bookmark it and check back often. You can also join the official Undead Mayhem Discord Server and Undead Dev. Roblox Group to stay up to date on new codes and promos. Finally, follow the developers' X (Twitter) profile @inventionrunner and the official YouTube channel @AuthenticVault.